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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-07-03 07:27:52 +0000 |
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| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-07-03 07:27:52 +0000 |
| commit | d0c85e36e4de67af628d54e9ab577cc3fad7796a (patch) | |
| tree | f8f784b0f04343b90516a338d6df81df3a85dfa2 /results/classifier/gemma3:12b/kernel/1650 | |
| parent | 7f4364274750eb8cb39a3e7493132fca1c01232e (diff) | |
| download | emulator-bug-study-d0c85e36e4de67af628d54e9ab577cc3fad7796a.tar.gz emulator-bug-study-d0c85e36e4de67af628d54e9ab577cc3fad7796a.zip | |
add deepseek and gemma results
Diffstat (limited to 'results/classifier/gemma3:12b/kernel/1650')
| -rw-r--r-- | results/classifier/gemma3:12b/kernel/1650 | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/results/classifier/gemma3:12b/kernel/1650 b/results/classifier/gemma3:12b/kernel/1650 new file mode 100644 index 00000000..fd369bb1 --- /dev/null +++ b/results/classifier/gemma3:12b/kernel/1650 @@ -0,0 +1,15 @@ + +Consider doing runtime detection of MAP_FIXED_NOREPLACE +Description of problem: +``` +qemu-i386-static: Unable to reserve 0xfffff000 bytes of virtual address space at 0x1000 (Operation not supported) for use as guest address space (check your virtual memory ulimit setting, min_mmap_addr or reserve less using -R option) +``` +strace says +``` + mmap(0x1000, 4294963200, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_NORESERVE|MAP_FIXED_NOREPLACE, -1, 0) = -1 EOPNOTSUPP (Operation not supported) +``` +Steps to reproduce: +1. `apt install qemu-i386-static 32subsystem` +2. `strace qemu-i386-static /opt/32/bin/as` +Additional information: +Repeating the strace call in a minimal C program gives the same errno as expected -- the kernel is only 4.4. The problem here is that qemu only does `MAP_FIXED_NOREPLACE` feature detection at build-time via a `#ifndef` and even that behavior is poorly documented. Maybe do something at runtime? |